139380455 has 16 divisors (see below), whose sum is σ = 170558784. Its totient is φ = 109320960.

The previous prime is 139380431. The next prime is 139380473. The reversal of 139380455 is 554083931.

It is a happy number.

It is not a de Polignac number, because 139380455 - 2¹⁰ = 139379431 is a prime.

It is a super-2 number, since 2×139380455² = 38853822472014050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68939 + ... + 70931.

It is an arithmetic number, because the mean of its divisors is an integer number (10659924).

Almost surely, 2^139380455 is an apocalyptic number.

139380455 is a deficient number, since it is larger than the sum of its proper divisors (31178329).

139380455 is a wasteful number, since it uses less digits than its factorization.

139380455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2266.

The product of its (nonzero) digits is 64800, while the sum is 38.

The square root of 139380455 is about 11805.9499829535. The cubic root of 139380455 is about 518.4823290291.

The spelling of 139380455 in words is "one hundred thirty-nine million, three hundred eighty thousand, four hundred fifty-five".